LT3663IMS8E-5#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
The LT3663IMS8E-5 is an automotive-grade synchronous step-down DC-DC converter rated for 7.5V to 36V input and 5V/1.2A output. It uses constant-frequency current-mode control and is housed in an 8-pin MSOP with exposed pad for enhanced thermal performance.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- LT3663IMS8E-5#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $4.2200(MOQ 19)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LT3663IMS8E-5#PBF?
- Automotive-grade 7.5V to 36V input range handles cold-crank, load-dump, and 24V truck systems
- Fixed 5V output at up to 1.2A with constant-frequency current-mode control for stable regulation
- 8-pin MSOP with exposed thermal pad minimizes PCB footprint while dissipating heat efficiently
- Internal synchronous rectifier eliminates external Schottky diode, reducing BOM count and losses
- Integrated soft-start and thermal shutdown for robust operation in harsh automotive environments
What is LT3663IMS8E-5#PBF used for?
The LT3663IMS8E-5 is designed for automotive and industrial applications requiring a compact, high-input-voltage 5V rail derived from a 12V or 24V vehicle bus. It powers microcontrollers, sensors, CAN transceivers, and infotainment sub-circuits where the input may swing from 7.5V during cold-crank to 36V during load-dump transients. The small MSOP-8E package and minimal external component count make it well-suited for ECU power rails, ADAS sensor boards, and industrial 24V DIN-rail controllers.
What are the specifications of LT3663IMS8E-5#PBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1662 |
| YTEOL | 10 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | CONSTANT FREQUENCY |
| Input Voltage-Max | 36V |
| Input Voltage-Min | 7.5V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | S-PDSO-G8 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Current-Max | 2.5A |
| Output Voltage-Max | 5.1V |
| Output Voltage-Min | 4.9V |
| Output Voltage-Nom | 5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 3.2mA |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 1100kHz |
| Technology | BIPOLAR |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Malaysia |
Where can I find the LT3663IMS8E-5#PBF datasheet?
LT3663IMS8E-5#PBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LT3663IMS8E-5#PBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the LT3663IMS8E-5 handle automotive load-dump transients up to 36V while delivering a stable 5V output?
The LT3663IMS8E-5 is rated for input voltages from 7.5V to 36V, covering the full ISO 7637-2 load-dump range common in 12V automotive systems. Its constant-frequency current-mode control maintains tight 5V regulation across the entire 7.5V to 36V input window, protecting downstream electronics during transients.
What is the maximum continuous output current, and how should the PCB be designed for thermal management?
The LT3663IMS8E-5 delivers up to 1.2A continuous output current. The 8-pin MSOP exposed pad should be soldered to a copper pour connected to ground, and a via array of at least 4 vias to an inner copper plane is recommended to keep junction temperature below 125°C at full load in a 70°C ambient environment.
Which external passive components are required to build a complete LT3663IMS8E-5 5V power supply?
A typical LT3663IMS8E-5 application requires only an input capacitor (10 µF ceramic), an output capacitor (22 µF ceramic), and an inductor (4.7 µH to 10 µH). The integrated synchronous rectifier and internal compensation reduce the external BOM to fewer than 5 components.
Can the LT3663IMS8E-5 be used in 24V industrial systems as well as 12V automotive designs?
Yes, the 36V maximum input rating accommodates 24V nominal industrial rails that may spike to 30V or beyond. Operating from a 24V rail, the 1.2A output provides 6W of regulated 5V power, which is sufficient to supply a microcontroller, a CAN/RS-485 transceiver, and several digital I/O circuits simultaneously.
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About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 19+ | $5.5900 | $106.21 |
| 100+ | $5.0126 | $501.26 |
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| 1000+ | $4.2200 | $4220.00 |
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